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[nooc]

Would be nice to have a sound state listener, for example:

Code:

interface SoundStateListener {

   abstract void soundStateChanged(Sound sound, SoundState state);
   abstract void soundLooped(Sound sound);
}

class Sound ... {

...

   static final int LISTEN_STATE =1; // flag for receiving soundStateChanged
   static final int LISTEN_LOOP =2; // flag for receiving soundLooped

...

public void addSoundStateListener(SoundStateListener listener, int flags);
public void removeSoundStateListener(SoundStateListener listener);

...

}

What do you think?

[Marvin Fröhlich]

The problem is, that the sound driver (e.g. JOAL) does the looping internally. So there doesn't seem to be a way to detect, when the sound was looped. The state change is a user action. So you can easily track that on your own.

Marvin

[nooc]

Streaming sounds are not processed internally and also, there is AL_SAMPLE_OFFSET and AL_SEC_OFFSET  that can be checked. It shouldn't be a problem.
While play is a user action, stop is not always one. It would be nice if one could fire-and-forget a sound and then later be notified when it stops. For example, play a voice dialog and at the end, execute an action, this without having to think about timing.
Sound event systems are very useful. Many good sound systems have them.